scholarly journals In-Vitro Antimicrobial Activity and Chemical Composition of Satureja khuzestanica Jamzad Essential Oils Against Multidrug-Resistant Acinetobacter baumannii

2017 ◽  
Vol 4 (2) ◽  
pp. 45601-45601 ◽  
Author(s):  
Fereshteh Eftekhar ◽  
Nastaran Ashoori ◽  
Morteza Yousefzadi
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Acinetobacter Baumannii ◽  
Multidrug Resistant ◽  
In Vitro Antimicrobial Activity ◽  
Satureja Khuzestanica

Chemical Composition and in vitro Antimicrobial Activity of the Essential Oils of Two Helichrysum Species from Tanzania

2004 ◽  
Vol 59 (5-6) ◽  
pp. 368-372 ◽  
Author(s):  
Christos Bougatsos ◽  
Olipa Ngassapa ◽  
Deborah K. B. Runyoro ◽  
Ioanna B. Chinou
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Pathogenic Fungi ◽  
Caryophyllene Oxide ◽  
In Vitro Antimicrobial Activity ◽  
Aerial Parts ◽  
Main Components

The chemical composition of the essential oils obtained from the aerial parts of Helichrysum cymosum and H. fulgidum, from Tanzania, were analyzed by GC and GC/MS. A total of sixty-five compounds, representing 92.4% and 88.2% of the two oils, respectively, were identified. trans-Caryophyllene, caryophyllene oxide, β-pinene, p-cymene, spathulenol and β- bourbonene were found to be the main components. Furthermore, the oils were tested against six gram (±) bacteria and three pathogenic fungi. It was found that the oil of H. fulgidum exhibited significant antimicrobial activity, while the oil of H. cymosum was not active at all.

Chemical Composition And In-Vitro Antimicrobial Activity Of The Essential Oils Of Three Greek Achillea Species

2002 ◽  
Vol 57 (3-4) ◽  
pp. 287-290 ◽  
Author(s):  
Prokopios Magiatis ◽  
Alexios-Leandros Skaltsounis ◽  
Ioanna Chinou ◽  
Serkos A. Haroutounian
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Pathogenic Fungi ◽  
The Other ◽  
Gram Negative ◽  
In Vitro Antimicrobial Activity ◽  
Ms Analysis

The chemical composition of the essential oils of Achillea holosericea, Achillea taygetea, Achillea fraasii was determined by GC/MS analysis. Among the ninety-five assayed constituents, camphor, borneol and 1,8-cineol were found to be the major components. The in-vitro antimicrobial activity of these essential oils was evaluated against six bacteria indicating that the first is totally inactive, while the other two possess moderate to strong activities mainly against the Gram negative strains. The essential oil of A. fraasii was also active against the tested pathogenic fungi

In vitro antimicrobial activity and chemical composition of someSatureja essential oils

2005 ◽  
Vol 20 (6) ◽  
pp. 587-591 ◽  
Author(s):  
Ayse Dilek Azaz ◽  
Mine Kürkcüoglu ◽  
Fatih Satil ◽  
K. Hüsnü Can Baser ◽  
Gülendam Tümen
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
In Vitro Antimicrobial Activity

scholarly journals In-vitro antimicrobial activity and chemical composition of Sardinian Thymus essential oils

1999 ◽  
Vol 29 (2) ◽  
pp. 130-135 ◽  
Author(s):  
S. Cosentino ◽  
C. I. G. Tuberoso ◽  
B. Pisano ◽  
M. Satta ◽  
V. Mascia ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
In Vitro Antimicrobial Activity

scholarly journals In Vitro Antimicrobial Activity of the Siderophore Cephalosporin Cefiderocol against Acinetobacter baumannii Strains Recovered from Clinical Samples

Antibiotics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1309
Author(s):  
Davide Carcione ◽  
Claudia Siracusa ◽  
Adela Sulejmani ◽  
Roberta Migliavacca ◽  
Alessandra Mercato ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Acinetobacter Baumannii ◽  
Inhibition Zone ◽  
Broth Microdilution ◽  
Large Variability ◽  
Gold Standard Method ◽  
Disk Diffusion Test ◽  
In Vitro Antimicrobial Activity ◽  
Broth Microdilution Method

Background: Cefiderocol is a siderophore cephalosporin that exhibits antimicrobial activity against most multi-drug resistant Gram-negative bacteria, including Enterobacterales, Pseudomonas aeruginosa, Acinetobacter baumannii, and Stenotrophomonas maltophilia. Methods: A total of 20 multidrug-resistant A. baumannii strains were isolated from 2020 to 2021, molecularly characterized and tested to assess the in vitro antibacterial activity of cefiderocol. Thirteen strains were carbapenem-hydrolysing oxacillinase OXA-23-like producers, while seven were non-OXA-23-like producers. Minimum inhibitory concentrations (MICs) were determined by broth microdilution, considered as the gold standard method. Disk diffusion test was also carried out using iron-depleted CAMHB plates for cefiderocol. Results: Cefiderocol MICs ranged from 0.5 to 1 mg/L for OXA-23-like non-producing A. baumannii strains and from 0.25 to >32 mg/L for OXA-23-like producers, using the broth microdilution method. Cefiderocol MIC90 was 8 mg/L. Diameter of inhibition zone of cefiderocol ranged from 18 to 25 mm for OXA-23-like non-producers and from 15 to 36 mm for OXA-23-like producers, using the diffusion disk method. A large variability and a low reproducibility were observed during the determination of diameter inhibition zone. Molecular characterization showed that all isolates presented the ISAba1 genetic element upstream the blaOXA-51. Among OXA-23-like non-producers, four were blaOXA-58 positive and two were negative for all the resistance determinants analyzed. Conclusions: Cefiderocol showed in vitro antimicrobial activity against both carbapenem-susceptible and non-susceptible A. baumannii strains, although some OXA-23-like producers were resistant. Further clinical studies are needed to consolidate the role of cefiderocol as an antibiotic against MDR A. baumannii.

scholarly journals In vitro antimicrobial activity of five essential oils on multi-drug resistant Gram-negative clinical isolates

2016 ◽  
Vol 5 (3) ◽  
pp. 212 ◽  
Author(s):  
Hercules Sakkas ◽  
Panagiota Gousia ◽  
Vangelis Economou ◽  
Vassilios Sakkas ◽  
Stefanos Petsios ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Clinical Isolates ◽  
Drug Resistant ◽  
Gram Negative ◽  
In Vitro Antimicrobial Activity

Evaluation of the in vitro antimicrobial activity of selected Saudi scorpion venoms tested against multidrug-resistant micro-organisms

2017 ◽  
Vol 10 ◽  
pp. 14-18 ◽  
Author(s):  
Abdulrahman K. Al-Asmari ◽  
Meshref Ali Alamri ◽  
Aqeel Salman Almasoudi ◽  
Rajamohamed Abbasmanthiri ◽  
Maysa Mahfoud
Keyword(s):  
Antimicrobial Activity ◽  
Multidrug Resistant ◽  
In Vitro Antimicrobial Activity ◽  
Scorpion Venoms ◽  
Micro Organisms
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